108906593 has 2 divisors, whose sum is σ = 108906594. Its totient is φ = 108906592.

The previous prime is 108906569. The next prime is 108906631. The reversal of 108906593 is 395609801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59105344 + 49801249 = 7688^2 + 7057^2 .

It is a cyclic number.

It is not a de Polignac number, because 108906593 - 2⁶ = 108906529 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 108906593.

It is not a weakly prime, because it can be changed into another prime (108906563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54453296 + 54453297.

It is an arithmetic number, because the mean of its divisors is an integer number (54453297).

Almost surely, 2^108906593 is an apocalyptic number.

It is an amenable number.

108906593 is a deficient number, since it is larger than the sum of its proper divisors (1).

108906593 is an equidigital number, since it uses as much as digits as its factorization.

108906593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 108906593 is about 10435.8321661476. The cubic root of 108906593 is about 477.5491290148.

The spelling of 108906593 in words is "one hundred eight million, nine hundred six thousand, five hundred ninety-three".